Police bike riders why?

[BarringtonL]

Watching traffic cops right now and they have a traffic cop, catching speeding bikers on his bike. This is obviously the dream job for a biker but got me thinking, there are obviously policemen/women who are bikers but why? When surely it is almost impossible to keep to the speed limits on these super bikes they are riding?

I can't see how its worth it if you stick to the speed limits, which I assume they must do at risk of losing their job.

[BarringtonL]

You understand what I'm saying? I'm not advocating breaking speed limits, and I don't own a bike, but I can't understand how someone like a police officer who needs to stick to limits would have a powerful bike? Surely speed is the point?